Author(s): G. R. Alger; H. S. Santeford
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Keywords: No Keywords
Abstract: When an ice cover forms on a river, the wetted perimeter is increased and the boundary resistance is altered. This generally results in an increase in river stage. The river level is further altered with time as the ice thickness changes. Under these conditions, the stage-discharge relationship developed for the summer open water condition is not directly applicable for flowrate determination under an ice cover. In this paper, a theoretically based model is developed which allows for a direct prediction of the under-ice flowrate using indicated stage, float depth of the ice, and the open water stage-discharge relationship. An example of field application is provided for illustrative purposes. The proposed model has the advantage of being: (a) theoretically based, (b) reproducible, and (c) computer compatible.
Year: 1984